[v6r20] catch mroe exception in the ReqClient for displaying FTS Jobs

[chaen]

Replaces #3802
@marianne013 can you please test this hack we talked about ? It will just avoid your script to crash, but it won't display the requests. Sorry I did not try it.

BEGINRELEASENOTES

*RMS
FIX: catch more exception in the ReqClient when trying to display the associated FTS jobs

ENDRELEASENOTES

[coveralls]

Coverage increased (+0.003%) to 22.265% when pulling fbf9575 on chaen:rel-v6r20_FIX_reqClientcatchMore into 456ff2f on DIRACGrid:rel-v6r20.

[marianne013]

lx02:diracdev_v6r20p13 > dirac-rms-request test2009.orig
Request name='test2009.orig' ID=17 Status='Waiting' ('Assigned' in DB)
Created 2018-09-20 10:12:21, Updated 2018-09-20 10:13:12, NotBefore 2018-09-20 10:12:21
Owner: '/C=UK/O=eScience/OU=Imperial/L=Physics/CN=daniela bauer', Group: gridpp_user
[0] Operation Type='ReplicateAndRegister' ID=23 Order=0 Status='Waiting'
TargetSE: UKI-LT2-QMUL-disk - Created 2018-09-20 10:12:21, Updated 2018-09-20 10:12:21
[01] ID=23 LFN='/gridpp/user/d/daniela.bauer/simonisstillannoying4' Status='Waiting' Checksum='1d15bf1b'
exception in FTS3JSONDecoder No module named sqlalchemy for type FTS3TransferOperation

(Not sure about the last exception, that existed before as well)

[atsareg]

Is the test conclusive for this PR ?

[marianne013]

From my point of view, yes